<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<input type="text" id="inputArea">
<input type="button" value="确定" id="saveBtn">

<ul id="todo-wrapper">

</ul>

<body>
    <script type="module" src="./src/app.ts"></script>
</body>
<style>
    #todo-wrapper {
        width: 200px;
        height: 200px;
        background-color: pink;
    }
</style>

</html>